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(a) What are the two ways in which the p...

(a) What are the two ways in which the physical states of matter can be changed ?
(b) Draw the 'states of matter triangle' to show the interconversion of states of matter.
(c ) How can the evaporation of a liquid be made faster ?

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Knowledge Check

  • The physical state of a substance can be changed by

    A
    decreasing its temperature.
    B
    removing heat energy from the substance.
    C
    giving heat energy to the substance.
    D
    Both (b) and (c)

  • The physical state of a substance can be changed by

    A
    decreasing its temperature
    B
    removing heat energy from the substane
    C
    giving heat energy to the substacne
    D
    both b and c

  • A change in the physical state can be brought about

    A
    only when energy is given to the system.
    B
    only when energy is taken out from the system.
    C
    When energy is either given to, or taken out from the system.
    D
    Without any energy change.

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